LavaIndicatorShader.cs

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using System;
using Microsoft.Xna.Framework;
using ReLogic.Peripherals.RGB;
 
namespace Terraria.GameContent.RGB;
 
public class LavaIndicatorShader : ChromaShader
{
    private readonly Vector4 _backgroundColor;
 
    private readonly Vector4 _primaryColor;
 
    private readonly Vector4 _secondaryColor;
 
    public LavaIndicatorShader(Color backgroundColor, Color primaryColor, Color secondaryColor)
    {
        _backgroundColor = backgroundColor.ToVector4();
        _primaryColor = primaryColor.ToVector4();
        _secondaryColor = secondaryColor.ToVector4();
    }
 
    [RgbProcessor(/*Could not decode attribute arguments.*/)]
    private void ProcessLowDetail(RgbDevice device, Fragment fragment, EffectDetailLevel quality, float time)
    {
        for (int i = 0; i < fragment.Count; i++)
        {
            float staticNoise = NoiseHelper.GetStaticNoise(fragment.GetCanvasPositionOfIndex(i) * 0.3f + new Vector2(12.5f, time * 0.2f));
            staticNoise = Math.Max(0f, 1f - staticNoise * staticNoise * 4f * staticNoise);
            staticNoise = MathHelper.Clamp(staticNoise, 0f, 1f);
            Vector4 vector = Vector4.Lerp(_primaryColor, _secondaryColor, staticNoise);
            fragment.SetColor(i, vector);
        }
    }
 
    [RgbProcessor(/*Could not decode attribute arguments.*/)]
    private void ProcessHighDetail(RgbDevice device, Fragment fragment, EffectDetailLevel quality, float time)
    {
        for (int i = 0; i < fragment.Count; i++)
        {
            Vector2 canvasPositionOfIndex = fragment.GetCanvasPositionOfIndex(i);
            Vector4 vector = _backgroundColor;
            float dynamicNoise = NoiseHelper.GetDynamicNoise(canvasPositionOfIndex * 0.2f, time * 0.5f);
            float num = 0.4f;
            num += dynamicNoise * 0.4f;
            float num2 = 1.1f - canvasPositionOfIndex.Y;
            if (num2 < num)
            {
                float staticNoise = NoiseHelper.GetStaticNoise(canvasPositionOfIndex * 0.3f + new Vector2(12.5f, time * 0.2f));
                staticNoise = Math.Max(0f, 1f - staticNoise * staticNoise * 4f * staticNoise);
                staticNoise = MathHelper.Clamp(staticNoise, 0f, 1f);
                Vector4 value = Vector4.Lerp(_primaryColor, _secondaryColor, staticNoise);
                float amount = 1f - MathHelper.Clamp((num2 - num + 0.2f) / 0.2f, 0f, 1f);
                vector = Vector4.Lerp(vector, value, amount);
            }
            fragment.SetColor(i, vector);
        }
    }
}